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Laminate, antireflective film, polarizing plate and image display device

a technology of anti-reflective film and image display device, which is applied in the direction of cellulosic plastic layered products, instruments, synthetic resin layered products, etc., can solve the problems of poor alkali resistance of the binder after curing, difficult to achieve both, and anti-static characteristics, etc., to achieve excellent anti-static properties excellent anti-static properties

Inactive Publication Date: 2011-02-03
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0017]An object of the present invention is to provide a laminate which has an excellent antistatic property and is excellent in productivity. Another object of the invention is to provide an antireflective film having excellent antireflective characteristic, scratch resistance, adhesion property, dust resistance, antifouling property and hardcoat property in case of using the above-described laminate for the antireflective film.
[0038]According to the present invention, a laminate excellent in the antistatic property and excellent in the productivity can be provided. Since the laminate according to the invention is excellent in the antistatic property and excellent in the productivity, it can be applied to various fields, for example, field of optics, precision instrument, building material or home appliance, requiring the antistatic property for the purpose of preventing, for example, dust attachment or electric circuit failure due to charge.
[0039]Further, according to the present invention, an antireflective film excellent in the antistatic property, dust resistance, antifouling property and hardcoat property and having a sufficient antireflective characteristic can be provided.
[0040]Moreover, using the antireflective film, a polarizing plate or image display device having high quality can be provided.

Problems solved by technology

However, since the improvement in the antistatic property and the antireflective characteristic are in a tradeoff relationship, it is difficult to achieve both of them.
Further, the silicon alkoxide has a problem in that the binder after curing is poor in alkali resistance and it may cause a problem to use an antireflective film on the surface of image display device which may be exposed to an alkaline detergent.
However, in the cured layer containing a small amount of organic antistatic component localized near the surface thereof, the antistatic characteristic is not necessarily sufficient and sustention of the antistatic characteristic is not enough.
However, the fine particles are complicated in the step of production and thus, a simpler technique has been requested.

Method used

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  • Laminate, antireflective film, polarizing plate and image display device
  • Laminate, antireflective film, polarizing plate and image display device
  • Laminate, antireflective film, polarizing plate and image display device

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

Preparation of Dispersion of Organic Conductive Compound (A)

[0372]A mixture of 200 g of toluene, 2 g of aniline, 4.2 g of dodecylbenzenesulfonic acid, 1.0 g of polyacrylic acid derivative and 0.03 g of 4-methylaniline was dissolved to prepare a solution and 60 g of distilled water containing 3.58 ml of 6N hydrochloric acid dissolved was added thereto.

[0373]To the resulting mixture was added 180 mg of tetrabutylammonium bromide, the mixture was cooled to 5° C. or lower and then 30 g of distilled water containing 5.4 g of ammonium persulfate dissolved was added thereto. The mixture was subjected to oxidation polymerization at the state of 5° C. or lower for 4 hours and then toluene was removed by vacuum distillation.

[0374]The resulting polyaniline precipitate was collected by filtration and washed with water to obtain the desired polyaniline. The polyaniline was dispersed in 200 g of toluene, the aqueous layer was removed, and the concentration was adjusted to 2% by weight to obtain t...

preparation example 2

Preparation of Dispersion of Organic Conductive Compound (B)

[0375]Using 6,000 g of distilled water and 400 ml of 36% hydrochloric acid, 400 g of aniline was dissolved. To the resulting solution was added 500 g of a 5 mol / l aqueous sulfuric acid solution and the mixture was cooled to −5° C.

[0376]In a beaker, 980 g (4.295 mol) of ammonium peroxodisulfate was added to 2,293 g of distilled water and dissolved to prepare an aqueous solution of oxidizing agent. The aqueous ammonium peroxodisulfate solution was gradually added dropwise to the aqueous acidic solution of aniline with stirring while cooling at −5° C. to obtain blackish green precipitate. The resulting polymer precipitate was collected by filtration, washed with water and then with acetone and vacuum-dried at room temperature to obtain power of quinonediimine-phenylenediamine type conductive polyaniline. In 90 g of N-methyl-2-prrolidone was dissolved 1.49 g of phenylhydrazine and then was dissolved 10 g of the solvent-soluble ...

preparation example 3

Preparation of Dispersion of Organic Conductive Compound (C)

[0377]To 1,000 ml of a 2% by weight aqueous solution of polystyrenesulfonic acid having a molecular weight of about 100,000 (PS-5, produced by Tosoh Organic Chemical Co., Ltd.) was added 8.0 g of 3,4-ethylenedioxythiophene, followed by mixing at 20° C. To the mixed solution was added 100 ml of an oxidation catalyst solution (containing 15% by weight of ammonium persulfate and 4.0% by weight of ferric sulfate), the mixture was stirred at 20° C. for 3 hours to undergo reaction.

[0378]To the resulting reaction solution was added 1,000 ml of ion-exchanged water and then about 1,000 ml of the liquid was removed using an ultrafiltration method. These operations were repeated 3 times.

[0379]To the resulting solution were added 100 ml of an aqueous 10% by weight sulfuric acid solution and 1,000 ml of ion-exchanged water and then about 1,000 ml of the liquid was removed using an ultrafiltration method. To the resulting solution was ad...

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Abstract

A laminate includes a support and a layer formed from a composition containing at least (A) an organic conductive compound and (B) a fluorine-containing curable compound, a common logarithm value (log SR) of surface resistivity SR (Ω / sq) of a surface of the laminate on the layer side is 13.0 or less, and a lower part uneven distribution ratio of the organic conductive compound (A) in the layer defined by the formula as defined herein is from 55 to 100 percent.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a laminate having an excellent antistatic property, an antireflective film, a polarizing plate using the antireflective film, and an image display device using the antireflective film or the polarizing plate on the outermost surface of the display.BACKGROUND OF THE INVENTION[0002]In the field of optics, precision instrument, building material, home appliance or the like, it is useful to apply a film having an antistatic function for the purpose of preventing, for example, dust attachment or electric circuit failure. In particular, in the field of home appliance, from the standpoint of dust resistance, the antistatic property has been recently required for a protective film provided on the surface of image display device, for example, a cathode ray tube display (CRT), a plasma display (PDP), an electroluminescence display (ELD) and a liquid crystal display device (LCD).[0003]The protective film of image display device is re...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G02B1/11B32B27/06B32B5/00G02B1/04
CPCG02B1/04Y10T428/269G02B2207/121G02F1/133502G02F1/133528G02F2201/50G02F2202/22G02F2202/28H01J2211/444H01J2229/8913H01J2329/892G02B1/111C08L27/12C08L101/12Y10T428/31971
Inventor SUZUKI, MASAAKIYONEYAMA, HIROYUKITAKADA, KATSUYUKI
Owner FUJIFILM CORP
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